<template>
  <div class="nudify-cropper">
    <div class="cropper__crop">
      <canvas ref="cropCanvas" />
    </div>

    <div class="cropper__help">
      <button v-tooltip="'Get recent changes from the editor.'" class="button" @click.prevent="reload">
        <span class="icon"><font-awesome-icon icon="sync" /></span>
        <span>Reload</span>
      </button>

      <section class="box">
        <div class="box__header">
          <h2 class="title">
            <font-awesome-icon icon="magic" /> Overlay.
          </h2>
        </div>

        <div class="box__content">
          <p>
            This tool allows you to select which area of the photo you want to cut, transform and then restore to the original photo.
          </p>

          <p>
            It is perfect for big photos where you just want to transform a specific area but you don't want to lose everything else.
          </p>

          <p>
            <font-awesome-icon icon="mouse-pointer" /> Move the photo by dragging it with the mouse, you can zoom in or out using the mouse wheel.
          </p>
        </div>
      </section>

      <section class="box">
        <div class="box__header">
          <h2 class="title">
            <font-awesome-icon icon="question-circle" /> How to obtain better results?
          </h2>
        </div>

        <div class="box__content">
          <p>
            <ul>
              <li>The person is standing in a straight position without crossing arms or legs.</li>
              <li>The person is looking towards the camera.</li>
              <li>The person wears light clothes. Bikinis work better.</li>
              <li>The person's body is visible and unobstructed.</li>
            </ul>
          </p>
        </div>
      </section>
    </div>
  </div>
</template>

<script>
import { round } from 'lodash'
import Cropper from 'cropperjs'

export default {
  data: () => ({
    cropper: undefined,
  }),

  computed: {
    photo() {
      return this.$parent.photo
    },
  },

  mounted() {
    this.create()
  },

  methods: {
    /**
     *
     */
    async create() {
      this.$refs.cropCanvas.addEventListener('crop', () => {
        const data = this.cropper.getData()

        this.photo.overlay = {
          startX: round(data.x),
          startY: round(data.y),
          endX: round(data.x) + round(data.width),
          endY: round(data.y) + round(data.height),
        }
      })

      this.cropper = new Cropper(this.$refs.cropCanvas, {
        viewMode: 1,
        dragMode: 'move',
        cropBoxMovable: false,
        cropBoxResizable: false,
        toggleDragModeOnDblclick: false,
        minCropBoxWidth: 512,
        minCropBoxHeight: 512,
        maxCropBoxWidth: 512,
        maxCropBoxHeight: 512,
        aspectRatio: 1,
        modal: true,
        guides: true,
        highlight: true,
        autoCropArea: 1,
        wheelZoomRatio: 0.05,
      })

      this.reload()
    },

    async reload() {
      await this.photo.syncEditor()
      this.cropper.replace(this.photo.fileInput.dataURL)
    },
  },
}
</script>

<style lang="scss" scoped>
.nudify-cropper {
  @apply flex h-full;
}

.cropper__help {
  @apply w-1/4 ml-4;

  .button {
    @apply mb-6 w-full;
  }

  .box p {
    @apply text-sm mb-4;
  }

  .box ul {
    @apply ml-4 list-disc;

    li {
      @apply mb-2;
    }
  }
}

.cropper__crop {
  @apply flex-1 h-full;
}
</style>

<style>
/*!
 * Cropper.js v1.5.6
 * https://fengyuanchen.github.io/cropperjs
 *
 * Copyright 2015-present Chen Fengyuan
 * Released under the MIT license
 *
 * Date: 2019-10-04T04:33:44.164Z
 */

.cropper-container {
  direction: ltr;
  font-size: 0;
  line-height: 0;
  position: relative;
  -ms-touch-action: none;
  touch-action: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.cropper-container img {
  display: block;
  height: 100%;
  image-orientation: 0deg;
  max-height: none !important;
  max-width: none !important;
  min-height: 0 !important;
  min-width: 0 !important;
  width: 100%;
}

.cropper-wrap-box,
.cropper-canvas,
.cropper-drag-box,
.cropper-crop-box,
.cropper-modal {
  bottom: 0;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.cropper-wrap-box,
.cropper-canvas {
  overflow: hidden;
}

.cropper-drag-box {
  background-color: #fff;
  opacity: 0;
}

.cropper-modal {
  background-color: #000;
  opacity: 0.5;
}

.cropper-view-box {
  display: block;
  height: 100%;
  outline: 1px solid #39f;
  outline-color: rgba(51, 153, 255, 0.75);
  overflow: hidden;
  width: 100%;
}

.cropper-dashed {
  border: 0 dashed #eee;
  display: block;
  opacity: 0.5;
  position: absolute;
}

.cropper-dashed.dashed-h {
  border-bottom-width: 1px;
  border-top-width: 1px;
  height: calc(100% / 3);
  left: 0;
  top: calc(100% / 3);
  width: 100%;
}

.cropper-dashed.dashed-v {
  border-left-width: 1px;
  border-right-width: 1px;
  height: 100%;
  left: calc(100% / 3);
  top: 0;
  width: calc(100% / 3);
}

.cropper-center {
  display: block;
  height: 0;
  left: 50%;
  opacity: 0.75;
  position: absolute;
  top: 50%;
  width: 0;
}

.cropper-center::before,
.cropper-center::after {
  background-color: #eee;
  content: ' ';
  display: block;
  position: absolute;
}

.cropper-center::before {
  height: 1px;
  left: -3px;
  top: 0;
  width: 7px;
}

.cropper-center::after {
  height: 7px;
  left: 0;
  top: -3px;
  width: 1px;
}

.cropper-face,
.cropper-line,
.cropper-point {
  display: block;
  height: 100%;
  opacity: 0.1;
  position: absolute;
  width: 100%;
}

.cropper-face {
  background-color: #fff;
  left: 0;
  top: 0;
}

.cropper-line {
  background-color: #39f;
}

.cropper-line.line-e {
  cursor: ew-resize;
  right: -3px;
  top: 0;
  width: 5px;
}

.cropper-line.line-n {
  cursor: ns-resize;
  height: 5px;
  left: 0;
  top: -3px;
}

.cropper-line.line-w {
  cursor: ew-resize;
  left: -3px;
  top: 0;
  width: 5px;
}

.cropper-line.line-s {
  bottom: -3px;
  cursor: ns-resize;
  height: 5px;
  left: 0;
}

.cropper-point {
  background-color: #39f;
  height: 5px;
  opacity: 0.75;
  width: 5px;
}

.cropper-point.point-e {
  cursor: ew-resize;
  margin-top: -3px;
  right: -3px;
  top: 50%;
}

.cropper-point.point-n {
  cursor: ns-resize;
  left: 50%;
  margin-left: -3px;
  top: -3px;
}

.cropper-point.point-w {
  cursor: ew-resize;
  left: -3px;
  margin-top: -3px;
  top: 50%;
}

.cropper-point.point-s {
  bottom: -3px;
  cursor: s-resize;
  left: 50%;
  margin-left: -3px;
}

.cropper-point.point-ne {
  cursor: nesw-resize;
  right: -3px;
  top: -3px;
}

.cropper-point.point-nw {
  cursor: nwse-resize;
  left: -3px;
  top: -3px;
}

.cropper-point.point-sw {
  bottom: -3px;
  cursor: nesw-resize;
  left: -3px;
}

.cropper-point.point-se {
  bottom: -3px;
  cursor: nwse-resize;
  height: 20px;
  opacity: 1;
  right: -3px;
  width: 20px;
}

@media (min-width: 768px) {
  .cropper-point.point-se {
    height: 15px;
    width: 15px;
  }
}

@media (min-width: 992px) {
  .cropper-point.point-se {
    height: 10px;
    width: 10px;
  }
}

@media (min-width: 1200px) {
  .cropper-point.point-se {
    height: 5px;
    opacity: 0.75;
    width: 5px;
  }
}

.cropper-point.point-se::before {
  background-color: #39f;
  bottom: -50%;
  content: ' ';
  display: block;
  height: 200%;
  opacity: 0;
  position: absolute;
  right: -50%;
  width: 200%;
}

.cropper-invisible {
  opacity: 0;
}

.cropper-bg {
  background-image: url('');
}

.cropper-hide {
  display: block;
  height: 0;
  position: absolute;
  width: 0;
}

.cropper-hidden {
  display: none !important;
}

.cropper-move {
  cursor: move;
}

.cropper-crop {
  cursor: crosshair;
}

.cropper-disabled .cropper-drag-box,
.cropper-disabled .cropper-face,
.cropper-disabled .cropper-line,
.cropper-disabled .cropper-point {
  cursor: not-allowed;
}

</style>
